<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet">
    <link href="https://cdn.bootcss.com/font-awesome/5.8.2/css/all.min.css" rel="stylesheet">
</head>
<body>

<div class="jumbotron jumbotron-fluid">
    <div class="container text-center">
        <h1 class="display-4">翻译</h1>
        <p class="lead">中英互译</p>
    </div>
</div>

<div class="container">
    <div class="row justify-content-between mb-5">
        <div class="col-md-3">
            <div class="btn-group btn-block" role="group" aria-label="Basic example" id="a">
                <button type="button" class="btn btn-primary">中文</button>
                <button type="button" class="btn btn-light">英语</button>
            </div>
        </div>
        <div class="col-md-3">
            <button type="button" class="btn btn-secondary btn-block" id="b" onclick="linc()">
                <i class="fas fa-arrows-alt-h"></i>
            </button>
        </div>
        <div class="col-md-3">
            <div class="btn-group btn-block" role="group" aria-label="Basic example" id="c">
                <button type="button" class="btn btn-primary">英语</button>
                <button type="button" class="btn btn-light">中文</button>
            </div>
        </div>
    </div>
    <div class="row mb-5">
        <div class="col-md-6">
            <div class="input-group">
                <textarea class="form-control" rows="5" id="d"></textarea>
            </div>
        </div>
        <div class="col-md-6">
            <div class="input-group">
                <textarea class="form-control" rows="5" id="e" placeholder="翻译" readonly="readonly"></textarea>
            </div>
        </div>
    </div>
    <div class="row">
        <div class="col-md-3">
            <button type="button" class="btn btn-primary btn-block btn-lg" id="btn_f" onclick="f()">翻译</button>
        </div>
    </div>
</div>

<script src="JavaScript.js">

</script>
</body>
</html>